>> a little bit of a relief tomorrow but the heat and humidity is out there and we are feeling it big time. the current temperature at reagan national airport 100 degrees. we broke the record in 1991. 102 degrees at reagan national airport was the high. this is what it feels like, the heat index 109 at reagan national 104 dulles airport. at the latest doppler radar thunderstorms clearing to the south, south of fredericksburg. earlier, they have had a severe thunderstorm warnings. we have a new heat advisory that will go into effect for the daytime hours tomorrow, expiring tomorrow night. then thunderstorms through the day. are you ready for another potential heat wave? the full forecast from the belfort furniture weather center coming out. >>> not ready for that. the coverage of the heat wave continues with richard reeve at the national mall with more on how hot it feels and how the people are coping. >> it is impressive. he concealed the thickness of the air. -- you can feel the thickness of the air. for some people, the temperatures are downright dangerous. even the shape does not h